package main

import (
	"fmt"
	"reflect"
	"time"
)

const (
	birthTime = "2006-01-02 15:04:05"
	a         = 3
	b         = iota
	c
	d
	e
	f
)

func main() {
	fmt.Printf("%v %v %v %v %v %v \n", a, b, c, d, e, f)
	fmt.Println(reflect.TypeOf(a))
	fmt.Println(time.Now().Format(birthTime))
	timer := time.NewTimer(5 * time.Second)
	timer.Reset(2 * time.Second)
	<-timer.C
	fmt.Println(time.Now().Format(birthTime))
}
